What is the primary function of very low-density lipoproteins (VLDLs)?
a. transporting cholesterol from peripheral tissues back to the liver
b. transporting the triglycerides to peripheral tissues
c. carrying absorbed lipids from the intestinal tract to circulation
d. transporting cholesterol to peripheral tissues
Answer: b. transporting the triglycerides to peripheral tissues
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Lung tissue receives oxygen and nutrients from the
A) pleural arteries. B) pulmonary arteries. C) pulmonary veins. D) coronary arteries. E) bronchial arteries.
The color receptors in the retina are most sensitive to light waves that are
A) red, blue, and yellow. B) green, yellow, and purple. C) red, green, and blue. D) orange, green, and purple.
Answer the following questions true (T) or false (F)
1. Electrical synapses are faster than chemical synapses due to the presence of gap junctions between cells. 2. Calcium ion entry into the axon terminal is necessary for the release of neurotransmitter into the synaptic cleft in a chemical synapse. 3. Neurotransmitters can be either excitatory or inhibitory depending upon the receptor present on the postsynaptic neuron.
Placing a red blood cell in an extremely hypertonic solution leads to hemolysis.
Answer the following statement true (T) or false (F)